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Advances in gravity analyses for studying volcanoes and earthquakes

This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such tra...

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Autor principal: OKUBO, Shuhei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japan Academy 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030974/
https://www.ncbi.nlm.nih.gov/pubmed/32037369
http://dx.doi.org/10.2183/pjab.96.005
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author OKUBO, Shuhei
author_facet OKUBO, Shuhei
author_sort OKUBO, Shuhei
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description This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such traditional geoprospecting is coupled with novel cosmic-ray radiography to produce a fine-resolution (<100 m) three-dimensional density structure of a volcano. On the other hand, temporal gravity changes provide invaluable information about the process of earthquake faulting, volcanic eruptions, caldera formation, etc. Specifically, in this report we present our previous work on gravity research for solid earth science: (1) the first detection of coseismic gravity changes, (2) the virtual visualization of the rising and falling of magma in a conduit of Asama volcano, and (3) the large-scale lateral movement of magma during the Miyake-jima eruption in 2000.
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spelling pubmed-70309742020-02-25 Advances in gravity analyses for studying volcanoes and earthquakes OKUBO, Shuhei Proc Jpn Acad Ser B Phys Biol Sci Review This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such traditional geoprospecting is coupled with novel cosmic-ray radiography to produce a fine-resolution (<100 m) three-dimensional density structure of a volcano. On the other hand, temporal gravity changes provide invaluable information about the process of earthquake faulting, volcanic eruptions, caldera formation, etc. Specifically, in this report we present our previous work on gravity research for solid earth science: (1) the first detection of coseismic gravity changes, (2) the virtual visualization of the rising and falling of magma in a conduit of Asama volcano, and (3) the large-scale lateral movement of magma during the Miyake-jima eruption in 2000. The Japan Academy 2020-02-10 /pmc/articles/PMC7030974/ /pubmed/32037369 http://dx.doi.org/10.2183/pjab.96.005 Text en © 2020 The Japan Academy This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Review
OKUBO, Shuhei
Advances in gravity analyses for studying volcanoes and earthquakes
title Advances in gravity analyses for studying volcanoes and earthquakes
title_full Advances in gravity analyses for studying volcanoes and earthquakes
title_fullStr Advances in gravity analyses for studying volcanoes and earthquakes
title_full_unstemmed Advances in gravity analyses for studying volcanoes and earthquakes
title_short Advances in gravity analyses for studying volcanoes and earthquakes
title_sort advances in gravity analyses for studying volcanoes and earthquakes
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030974/
https://www.ncbi.nlm.nih.gov/pubmed/32037369
http://dx.doi.org/10.2183/pjab.96.005
work_keys_str_mv AT okuboshuhei advancesingravityanalysesforstudyingvolcanoesandearthquakes